<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <header class="header">
        <figure class="logo">网站Logo</figure>
        <nav class="nav">导航菜单</nav>
    </header>
    <main class="content">
        <article class="main">
            <section class="article">文章内容</section>
        </article>
        <nav class="sidebar">侧边栏</nav>
    </main>
    <footer class="footer">页脚</footer>
</body>

</html>